711 lines
20 KiB
Go
711 lines
20 KiB
Go
// Copyright 2020 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"context"
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"math"
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"sort"
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"testing"
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"time"
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"github.com/stretchr/testify/require"
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"github.com/prometheus/prometheus/model/labels"
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"github.com/prometheus/prometheus/storage"
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"github.com/prometheus/prometheus/tsdb"
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"github.com/prometheus/prometheus/tsdb/chunkenc"
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)
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type backfillSample struct {
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Timestamp int64
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Value float64
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Labels labels.Labels
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}
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func sortSamples(samples []backfillSample) {
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sort.Slice(samples, func(x, y int) bool {
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sx, sy := samples[x], samples[y]
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if sx.Timestamp != sy.Timestamp {
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return sx.Timestamp < sy.Timestamp
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}
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return sx.Value < sy.Value
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})
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}
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func queryAllSeries(t testing.TB, q storage.Querier, expectedMinTime, expectedMaxTime int64) []backfillSample {
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ss := q.Select(context.Background(), false, nil, labels.MustNewMatcher(labels.MatchRegexp, "", ".*"))
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samples := []backfillSample{}
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for ss.Next() {
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series := ss.At()
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it := series.Iterator(nil)
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require.NoError(t, it.Err())
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for it.Next() == chunkenc.ValFloat {
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ts, v := it.At()
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samples = append(samples, backfillSample{Timestamp: ts, Value: v, Labels: series.Labels()})
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}
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}
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return samples
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}
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func testBlocks(t *testing.T, db *tsdb.DB, expectedMinTime, expectedMaxTime, expectedBlockDuration int64, expectedSamples []backfillSample, expectedNumBlocks int) {
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blocks := db.Blocks()
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require.Equal(t, expectedNumBlocks, len(blocks), "did not create correct number of blocks")
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for i, block := range blocks {
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require.Equal(t, block.MinTime()/expectedBlockDuration, (block.MaxTime()-1)/expectedBlockDuration, "block %d contains data outside of one aligned block duration", i)
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}
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q, err := db.Querier(math.MinInt64, math.MaxInt64)
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require.NoError(t, err)
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defer func() {
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require.NoError(t, q.Close())
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}()
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allSamples := queryAllSeries(t, q, expectedMinTime, expectedMaxTime)
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sortSamples(allSamples)
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sortSamples(expectedSamples)
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require.Equal(t, expectedSamples, allSamples, "did not create correct samples")
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if len(allSamples) > 0 {
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require.Equal(t, expectedMinTime, allSamples[0].Timestamp, "timestamp of first sample is not the expected minimum time")
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require.Equal(t, expectedMaxTime, allSamples[len(allSamples)-1].Timestamp, "timestamp of last sample is not the expected maximum time")
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}
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}
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func TestBackfill(t *testing.T) {
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tests := []struct {
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ToParse string
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IsOk bool
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Description string
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MaxSamplesInAppender int
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MaxBlockDuration time.Duration
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Expected struct {
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MinTime int64
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MaxTime int64
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NumBlocks int
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BlockDuration int64
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Samples []backfillSample
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}
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}{
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{
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ToParse: `# EOF`,
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IsOk: true,
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Description: "Empty file.",
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MaxSamplesInAppender: 5000,
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Expected: struct {
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MinTime int64
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MaxTime int64
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NumBlocks int
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BlockDuration int64
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Samples []backfillSample
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}{
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MinTime: math.MaxInt64,
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MaxTime: math.MinInt64,
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NumBlocks: 0,
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BlockDuration: tsdb.DefaultBlockDuration,
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Samples: []backfillSample{},
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},
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},
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{
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ToParse: `# HELP http_requests_total The total number of HTTP requests.
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# TYPE http_requests_total counter
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http_requests_total{code="200"} 1021 1565133713.989
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http_requests_total{code="400"} 1 1565133713.990
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# EOF
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`,
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IsOk: true,
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Description: "Multiple samples with different timestamp for different series.",
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MaxSamplesInAppender: 5000,
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Expected: struct {
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MinTime int64
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MaxTime int64
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NumBlocks int
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BlockDuration int64
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Samples []backfillSample
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}{
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MinTime: 1565133713989,
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MaxTime: 1565133713990,
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NumBlocks: 1,
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BlockDuration: tsdb.DefaultBlockDuration,
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Samples: []backfillSample{
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{
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Timestamp: 1565133713989,
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Value: 1021,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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{
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Timestamp: 1565133713990,
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Value: 1,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "400"),
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},
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},
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},
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},
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{
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ToParse: `# HELP http_requests_total The total number of HTTP requests.
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# TYPE http_requests_total counter
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http_requests_total{code="200"} 1021 1565133713.989
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http_requests_total{code="200"} 1022 1565392913.989
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http_requests_total{code="200"} 1023 1565652113.989
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# EOF
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`,
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IsOk: true,
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Description: "Multiple samples separated by 3 days.",
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MaxSamplesInAppender: 5000,
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Expected: struct {
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MinTime int64
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MaxTime int64
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NumBlocks int
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BlockDuration int64
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Samples []backfillSample
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}{
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MinTime: 1565133713989,
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MaxTime: 1565652113989,
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NumBlocks: 3,
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BlockDuration: tsdb.DefaultBlockDuration,
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Samples: []backfillSample{
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{
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Timestamp: 1565133713989,
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Value: 1021,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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{
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Timestamp: 1565392913989,
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Value: 1022,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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{
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Timestamp: 1565652113989,
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Value: 1023,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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},
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},
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},
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{
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ToParse: `# TYPE go info
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go_info{version="go1.15.3"} 1 1565392913.989
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# TYPE http_requests_total counter
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http_requests_total{code="200"} 1021 1565133713.989
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# EOF
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`,
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IsOk: true,
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Description: "Unordered samples from multiple series, which end in different blocks.",
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MaxSamplesInAppender: 5000,
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Expected: struct {
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MinTime int64
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MaxTime int64
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NumBlocks int
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BlockDuration int64
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Samples []backfillSample
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}{
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MinTime: 1565133713989,
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MaxTime: 1565392913989,
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NumBlocks: 2,
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BlockDuration: tsdb.DefaultBlockDuration,
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Samples: []backfillSample{
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{
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Timestamp: 1565133713989,
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Value: 1021,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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{
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Timestamp: 1565392913989,
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Value: 1,
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Labels: labels.FromStrings("__name__", "go_info", "version", "go1.15.3"),
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},
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},
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},
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},
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{
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ToParse: `# HELP http_requests_total The total number of HTTP requests.
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# TYPE http_requests_total counter
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http_requests_total{code="200"} 1021 1565133713.989
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http_requests_total{code="200"} 1 1565133714.989
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http_requests_total{code="400"} 2 1565133715.989
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# EOF
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`,
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IsOk: true,
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Description: "Multiple samples with different timestamp for the same series.",
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MaxSamplesInAppender: 5000,
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Expected: struct {
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MinTime int64
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MaxTime int64
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NumBlocks int
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BlockDuration int64
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Samples []backfillSample
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}{
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MinTime: 1565133713989,
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MaxTime: 1565133715989,
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NumBlocks: 1,
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BlockDuration: tsdb.DefaultBlockDuration,
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Samples: []backfillSample{
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{
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Timestamp: 1565133713989,
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Value: 1021,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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{
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Timestamp: 1565133714989,
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Value: 1,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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{
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Timestamp: 1565133715989,
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Value: 2,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "400"),
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},
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},
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},
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},
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{
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ToParse: `# HELP http_requests_total The total number of HTTP requests.
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# TYPE http_requests_total counter
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http_requests_total{code="200"} 1021 1624463088.000
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http_requests_total{code="200"} 1 1627055153.000
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http_requests_total{code="400"} 2 1627056153.000
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# EOF
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`,
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IsOk: true,
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Description: "Long maximum block duration puts all data into one block.",
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MaxSamplesInAppender: 5000,
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MaxBlockDuration: 2048 * time.Hour,
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Expected: struct {
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MinTime int64
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MaxTime int64
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NumBlocks int
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BlockDuration int64
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Samples []backfillSample
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}{
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MinTime: 1624463088000,
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MaxTime: 1627056153000,
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NumBlocks: 1,
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BlockDuration: int64(1458 * time.Hour / time.Millisecond),
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Samples: []backfillSample{
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{
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Timestamp: 1624463088000,
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Value: 1021,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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{
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Timestamp: 1627055153000,
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Value: 1,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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{
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Timestamp: 1627056153000,
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Value: 2,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "400"),
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},
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},
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},
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},
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{
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ToParse: `# HELP http_requests_total The total number of HTTP requests.
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# TYPE http_requests_total counter
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http_requests_total{code="200"} 1 1624463088.000
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http_requests_total{code="200"} 2 1629503088.000
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http_requests_total{code="200"} 3 1629863088.000
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# EOF
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`,
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IsOk: true,
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Description: "Long maximum block duration puts all data into two blocks.",
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MaxSamplesInAppender: 5000,
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MaxBlockDuration: 2048 * time.Hour,
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Expected: struct {
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MinTime int64
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MaxTime int64
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NumBlocks int
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BlockDuration int64
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Samples []backfillSample
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}{
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MinTime: 1624463088000,
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MaxTime: 1629863088000,
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NumBlocks: 2,
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BlockDuration: int64(1458 * time.Hour / time.Millisecond),
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Samples: []backfillSample{
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{
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Timestamp: 1624463088000,
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Value: 1,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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{
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Timestamp: 1629503088000,
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Value: 2,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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{
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Timestamp: 1629863088000,
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Value: 3,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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},
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},
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},
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{
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ToParse: `# HELP http_requests_total The total number of HTTP requests.
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# TYPE http_requests_total counter
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http_requests_total{code="200"} 1 1624463088.000
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http_requests_total{code="200"} 2 1765943088.000
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http_requests_total{code="200"} 3 1768463088.000
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# EOF
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`,
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IsOk: true,
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Description: "Maximum block duration longer than longest possible duration, uses largest duration, puts all data into two blocks.",
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MaxSamplesInAppender: 5000,
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MaxBlockDuration: 200000 * time.Hour,
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Expected: struct {
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MinTime int64
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MaxTime int64
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NumBlocks int
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BlockDuration int64
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Samples []backfillSample
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}{
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MinTime: 1624463088000,
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MaxTime: 1768463088000,
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NumBlocks: 2,
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BlockDuration: int64(39366 * time.Hour / time.Millisecond),
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Samples: []backfillSample{
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{
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Timestamp: 1624463088000,
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Value: 1,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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{
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Timestamp: 1765943088000,
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Value: 2,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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{
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Timestamp: 1768463088000,
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Value: 3,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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},
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},
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},
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{
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ToParse: `# HELP http_requests_total The total number of HTTP requests.
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# TYPE http_requests_total counter
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http_requests_total{code="200"} 1021 1565133713.989
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http_requests_total{code="200"} 1022 1565144513.989
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http_requests_total{code="400"} 2 1565155313.989
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http_requests_total{code="400"} 1 1565166113.989
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# EOF
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`,
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IsOk: true,
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Description: "Multiple samples that end up in different blocks.",
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MaxSamplesInAppender: 5000,
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Expected: struct {
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MinTime int64
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MaxTime int64
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NumBlocks int
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BlockDuration int64
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Samples []backfillSample
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}{
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MinTime: 1565133713989,
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MaxTime: 1565166113989,
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NumBlocks: 4,
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BlockDuration: tsdb.DefaultBlockDuration,
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Samples: []backfillSample{
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{
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Timestamp: 1565133713989,
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Value: 1021,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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{
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Timestamp: 1565144513989,
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Value: 1022,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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{
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Timestamp: 1565155313989,
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Value: 2,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "400"),
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},
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{
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Timestamp: 1565166113989,
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Value: 1,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "400"),
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},
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},
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},
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},
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{
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ToParse: `# HELP http_requests_total The total number of HTTP requests.
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# TYPE http_requests_total counter
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http_requests_total{code="200"} 1021 1565133713.989
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http_requests_total{code="200"} 1022 1565133714
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http_requests_total{code="200"} 1023 1565133716
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http_requests_total{code="200"} 1022 1565144513.989
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http_requests_total{code="400"} 2 1565155313.989
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http_requests_total{code="400"} 3 1565155314
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http_requests_total{code="400"} 1 1565166113.989
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# EOF
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`,
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IsOk: true,
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Description: "Number of samples are greater than the sample batch size.",
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MaxSamplesInAppender: 2,
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Expected: struct {
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MinTime int64
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MaxTime int64
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NumBlocks int
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BlockDuration int64
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Samples []backfillSample
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}{
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MinTime: 1565133713989,
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MaxTime: 1565166113989,
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NumBlocks: 4,
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BlockDuration: tsdb.DefaultBlockDuration,
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Samples: []backfillSample{
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{
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Timestamp: 1565133713989,
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Value: 1021,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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{
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Timestamp: 1565133714000,
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Value: 1022,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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{
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Timestamp: 1565133716000,
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Value: 1023,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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{
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Timestamp: 1565144513989,
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Value: 1022,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
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},
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{
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Timestamp: 1565155313989,
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Value: 2,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "400"),
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},
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{
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Timestamp: 1565155314000,
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Value: 3,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "400"),
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},
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{
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Timestamp: 1565166113989,
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Value: 1,
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Labels: labels.FromStrings("__name__", "http_requests_total", "code", "400"),
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},
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},
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},
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},
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{ // For https://github.com/prometheus/prometheus/issues/8476.
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|
ToParse: `# HELP http_requests_total The total number of HTTP requests.
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# TYPE http_requests_total counter
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http_requests_total{code="200"} 1021 0
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http_requests_total{code="200"} 1022 7199
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http_requests_total{code="400"} 1023 0
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http_requests_total{code="400"} 1024 7199
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# EOF
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`,
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IsOk: true,
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|
Description: "One series spanning 2h in same block should not cause problems to other series.",
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MaxSamplesInAppender: 1,
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Expected: struct {
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MinTime int64
|
|
MaxTime int64
|
|
NumBlocks int
|
|
BlockDuration int64
|
|
Samples []backfillSample
|
|
}{
|
|
MinTime: 0,
|
|
MaxTime: 7199000,
|
|
NumBlocks: 1,
|
|
BlockDuration: tsdb.DefaultBlockDuration,
|
|
Samples: []backfillSample{
|
|
{
|
|
Timestamp: 0,
|
|
Value: 1021,
|
|
Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
|
|
},
|
|
{
|
|
Timestamp: 7199000,
|
|
Value: 1022,
|
|
Labels: labels.FromStrings("__name__", "http_requests_total", "code", "200"),
|
|
},
|
|
{
|
|
Timestamp: 0,
|
|
Value: 1023,
|
|
Labels: labels.FromStrings("__name__", "http_requests_total", "code", "400"),
|
|
},
|
|
{
|
|
Timestamp: 7199000,
|
|
Value: 1024,
|
|
Labels: labels.FromStrings("__name__", "http_requests_total", "code", "400"),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
ToParse: `no_help_no_type{foo="bar"} 42 6900
|
|
# EOF
|
|
`,
|
|
IsOk: true,
|
|
Description: "Sample with no #HELP or #TYPE keyword.",
|
|
MaxSamplesInAppender: 5000,
|
|
Expected: struct {
|
|
MinTime int64
|
|
MaxTime int64
|
|
NumBlocks int
|
|
BlockDuration int64
|
|
Samples []backfillSample
|
|
}{
|
|
MinTime: 6900000,
|
|
MaxTime: 6900000,
|
|
NumBlocks: 1,
|
|
BlockDuration: tsdb.DefaultBlockDuration,
|
|
Samples: []backfillSample{
|
|
{
|
|
Timestamp: 6900000,
|
|
Value: 42,
|
|
Labels: labels.FromStrings("__name__", "no_help_no_type", "foo", "bar"),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
ToParse: `no_newline_after_eof 42 6900
|
|
# EOF`,
|
|
IsOk: true,
|
|
Description: "Sample without newline after # EOF.",
|
|
MaxSamplesInAppender: 5000,
|
|
Expected: struct {
|
|
MinTime int64
|
|
MaxTime int64
|
|
NumBlocks int
|
|
BlockDuration int64
|
|
Samples []backfillSample
|
|
}{
|
|
MinTime: 6900000,
|
|
MaxTime: 6900000,
|
|
NumBlocks: 1,
|
|
BlockDuration: tsdb.DefaultBlockDuration,
|
|
Samples: []backfillSample{
|
|
{
|
|
Timestamp: 6900000,
|
|
Value: 42,
|
|
Labels: labels.FromStrings("__name__", "no_newline_after_eof"),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
ToParse: `bare_metric 42.24 1001
|
|
# EOF
|
|
`,
|
|
IsOk: true,
|
|
Description: "Bare sample.",
|
|
MaxSamplesInAppender: 5000,
|
|
Expected: struct {
|
|
MinTime int64
|
|
MaxTime int64
|
|
NumBlocks int
|
|
BlockDuration int64
|
|
Samples []backfillSample
|
|
}{
|
|
MinTime: 1001000,
|
|
MaxTime: 1001000,
|
|
NumBlocks: 1,
|
|
BlockDuration: tsdb.DefaultBlockDuration,
|
|
Samples: []backfillSample{
|
|
{
|
|
Timestamp: 1001000,
|
|
Value: 42.24,
|
|
Labels: labels.FromStrings("__name__", "bare_metric"),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
ToParse: `# HELP rpc_duration_seconds A summary of the RPC duration in seconds.
|
|
# TYPE rpc_duration_seconds summary
|
|
rpc_duration_seconds{quantile="0.01"} 3102
|
|
rpc_duration_seconds{quantile="0.05"} 3272
|
|
# EOF
|
|
`,
|
|
IsOk: false,
|
|
Description: "Does not have timestamp.",
|
|
},
|
|
{
|
|
ToParse: `# HELP bad_metric This a bad metric
|
|
# TYPE bad_metric bad_type
|
|
bad_metric{type="has a bad type information"} 0.0 111
|
|
# EOF
|
|
`,
|
|
IsOk: false,
|
|
Description: "Has a bad type information.",
|
|
},
|
|
{
|
|
ToParse: `# HELP no_nl This test has no newline so will fail
|
|
# TYPE no_nl gauge
|
|
no_nl{type="no newline"}
|
|
# EOF
|
|
`,
|
|
IsOk: false,
|
|
Description: "No newline.",
|
|
},
|
|
{
|
|
ToParse: `# HELP no_eof This test has no EOF so will fail
|
|
# TYPE no_eof gauge
|
|
no_eof 1 1
|
|
`,
|
|
IsOk: false,
|
|
Description: "No EOF.",
|
|
},
|
|
{
|
|
ToParse: `# HELP after_eof There is data after EOF.
|
|
# TYPE after_eof gauge
|
|
after_eof 1 1
|
|
# EOF
|
|
after_eof 1 2
|
|
`,
|
|
IsOk: false,
|
|
Description: "Data after EOF.",
|
|
},
|
|
}
|
|
for _, test := range tests {
|
|
t.Run(test.Description, func(t *testing.T) {
|
|
t.Logf("Test:%s", test.Description)
|
|
|
|
outputDir := t.TempDir()
|
|
|
|
err := backfill(test.MaxSamplesInAppender, []byte(test.ToParse), outputDir, false, false, test.MaxBlockDuration)
|
|
|
|
if !test.IsOk {
|
|
require.Error(t, err, test.Description)
|
|
return
|
|
}
|
|
|
|
require.NoError(t, err)
|
|
options := tsdb.DefaultOptions()
|
|
options.RetentionDuration = int64(10 * 365 * 24 * time.Hour / time.Millisecond) // maximum duration tests require a long retention
|
|
db, err := tsdb.Open(outputDir, nil, nil, options, nil)
|
|
require.NoError(t, err)
|
|
defer func() {
|
|
require.NoError(t, db.Close())
|
|
}()
|
|
|
|
testBlocks(t, db, test.Expected.MinTime, test.Expected.MaxTime, test.Expected.BlockDuration, test.Expected.Samples, test.Expected.NumBlocks)
|
|
})
|
|
}
|
|
}
|